【摘要】 在一气固两相实验台上,对一台1 025 t/h的W型火焰锅炉旋风分离器进行了实验研究,分析了不同乏气风门开度下,消旋叶片位置对旋风分离器气相分配特性、系统阻力以及颗粒分离效率的影响.结果表明,在乏气风门开度分别为20%和40%时,随着消旋叶片远离主喷口出口平面,两种开度下的乏气百分比降低,系统阻力下降,颗粒分离效率增加.随着乏气风门开度的减小,乏气百分比明显降低,系统阻力略有增加.更多还原

【Abstract】 An experimental study on the cyclone burner of a 1 025 t/h down-fired boiler was carried out on a gas-solid two-phase flow test facility.With different vent air valve openings,the influence of the position of the adjustable vane on the characteristics of gas distribution,system resistance and particle separating efficiency of the cyclone burner with different vent air valve openings was acquired.The results show that when the vent air valve opening was 20% and 40% respectively,with the adjustable vane away from the nozzle,both the ratio of vent air and the system resistance decrease,while the particle separating efficiency increases.As the vent air valve opening decreases,the vent air ratio decreases obviously while the system resistance increases slightly.更多还原